James bbown



JAMES BROWN,

v Improvement in Mill -Stone Bushes.

Patented Au ust 15, 1871., No.118,101. V g

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:INITED STATE$ JAMES BROWN, OF FONDA, NEW YORK.

IMPROVEMENT lN MlLLSTONE-BUSHES.

Specification forming part of Letters Patent No. 118,101, dated August15, 1871.

To all whom it may concern:

Be it known that I, JAMES BROWN, of Fonda, in the county of Montgomeryand State of New York, have invented a new and useful Improvement inMillstone-Bush and I do hereby declare the following to be a full,clear, and exact description of the same, reference being had to theaccompanying drawing making a part of this specification, in which thefigure is a vertical section through the spindle.

My invention consists in an improvement upon millstone-bushes, ashereinafter fully described and subsequently pointed out in the claim.

A represents the sides of the casing, made to gradually increase inthickness inwardly from top to bottom. B are a series of blocks, each ofwhich has two of its longitudinal faces in contact with the innersurface of the case, and which are made to slope gradually andincreasingly outward as they approach the top of the case. These blockshave recesses b b to allow the long bolts 0 C to pass therethrough andbind the top and bottom to the body of the case. They have also centralrecesses 11 b b b, which, when united, form a circular aperture for thespindle D. The fol lowers are somewhat shorter than the casing, to

allow for their downward movement, as they become worn by friction fromthe spindle. E are four gaugescrews, passing through the bottom of thecasing.

The mode of operation is as follows: The spindle being surrounded bythese blocks to form a bearing therefor, the blocks themselves willclose around it, and as their central and inner surfaces are worn willautomatically take up their own wear as fast as it occurs. If, however,the blocks are at any time found to bind with too much friction upon thespindle, their degree of pressure is gauged and regulated by the screwsE.

Having thus described all that is necessary to a full understanding ofmy invention, what I esteem to be new, and desire to protect by LettersPatent, is'

The arrangement of beveled blocks B loosely in relation both to thebeveled sides of case A and to gauge-screws E, as and for the purposespecified.

JAMES BROWN.

Witnesses:

J. H. UOOK, ADAM FONDA.

